wechatbak/wjj-core/target/classes/mybatis/ImgItemMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.demo.wjj.mapper.TbImgItemMapper">
    <select id="selectAll" resultType="com.demo.wjj.po.ImgItem">
        select t.id                 id,
               t.img_bq_id          imgBqId,
               t.img_bq_name        imgBqName,
               t.img_ml_name        imgMlName,
               t.type               type,
               t.img_url            imgUrl
        from tb_img_item t
        where t.type = #{type}
        GROUP by t.img_bq_name ;
    </select>


    <select id="selectImamlNameList" resultType="java.lang.String">
        select t.img_ml_name
        from tb_img_item t
        where t.type = #{type} and t.img_bq_id = #{imgbqId}
    </select>

</mapper>